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How do I manage MongoDB connections in a Node.js web application?

...tive says: You open do MongoClient.connect once when your app boots up and reuse the db object. It's not a singleton connection pool each .connect creates a new connection pool. So, to answer your question directly, reuse the db object that results from MongoClient.connect(). This gives yo...
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Test for multiple cases in a switch, like an OR (||)

...nywhere... thank you @SLaks for you're answer too. – Andres Jun 29 '11 at 14:40 ...
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Adding external library in Android studio

I want to add external library https://github.com/foursquare/foursquare-android-oauth to my Android application (I use Android Studio, the instructions provided by lib author for Eclipse didn't work for Android Studio). ...
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Why can't I stop vim from wrapping my code?

...idth' is zero, 'wrapmargin' may be used. See also 'formatoptions' and |ins-textwidth|. When 'formatexpr' is set it will be used to break the line. NOTE: This option is set to 0 when 'compatible' is set. 'wrapmargin' 'wm' number (default 0) l...
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Insert Unicode character into JavaScript

.... I am using its HTML escaped code to do that, so I can write Ω and get Ω. That's all fine and well when I put it into a HTML element; however, when I try to put it into my JS, e.g. var Omega = Ω , it parses that code as JS and the whole thing doesn't work. Anyone know how to g...
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Convert command line arguments into an array in Bash

How do I convert command-line arguments into a bash script array? 7 Answers 7 ...
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Remove rows with duplicate indices (Pandas DataFrame and TimeSeries)

...utomated weather data from the web. The observations occur every 5 minutes and are compiled into monthly files for each weather station. Once I'm done parsing a file, the DataFrame looks something like this: ...
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How to disable margin-collapsing?

...apsing margins between adjacent elements Collapsing margins between parent and child elements Using a padding or border will prevent collapse only in the latter case. Also, any value of overflow different from its default (visible) applied to the parent will prevent collapse. Thus, both overflow: ...
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Can I create a One-Time-Use Function in a Script or Stored Procedure?

... You can call CREATE Function near the beginning of your script and DROP Function near the end. share | improve this answer | follow | ...
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What's wrong with cplusplus.com?

...the container. Its because std::remove works with a pair of iterators only and does not know anything about the container which actually contains the items. In fact, it's not possible for std::remove to know the underlying container, because there is no way it can go from a pair of iterators to disc...